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Temporoparietal Fascia Flaps for Surgical Treatment of Cartilage Exposure After the First-Stage Microtia Reconstruction
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作者 Zhicheng XU Ruhong ZHANG +4 位作者 Qun ZHANG Feng XU datao li Yiyuan li Xia CHEN 《Chinese Journal of Plastic and Reconstructive Surgery》 2021年第2期76-78,共3页
Significant improvements have been achieved in microtia reconstruction using an autogenous costal cartilage framework.However,complications such as skin necrosis and cartilage exposure often destroy the final contour ... Significant improvements have been achieved in microtia reconstruction using an autogenous costal cartilage framework.However,complications such as skin necrosis and cartilage exposure often destroy the final contour of the reconstructed auricle.Local fascia flaps are commonly used in salvage surgery because of their reliability and satisfactory results.Here,we report the case of a 26-year-old woman with multiple skin necroses and cartilage exposure on day 21 after the first-stage microtia reconstruction.The exposure area was covered by a temporoparietal fascia flap as a single-stage procedure.The most essential subunits survived,and the esthetic concours were harmonious and natural at 12 months postoperatively.Temporoparietal fascia flaps are recommended as the surgical treatment for multiple skin necroses and cartilage exposure in microtia reconstruction.The axial-pattern temporoparietal fascia flap is reliable for salvage auricular reconstruction and ensures satisfactory results at long-term follow-up. 展开更多
关键词 MICROTIA Cartilage exposure Temporoparietal fascia flaps
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Porosity Effects on Mechanical Properties of 3D Random Fibrous Materials at Elevated Temperatures 被引量:2
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作者 datao li Wenshan Yu +2 位作者 Wei Xia Qinzhi Fang Shengping Shen 《Acta Mechanica Solida Sinica》 SCIE EI CSCD 2020年第1期14-30,共17页
In this study,we prepare the specimens of three-dimensional random fibrous(3D RF)material along its through-the-thickness(TTT)and in-plane(IP)directions.The experimental tests of tensile and compressive properties as ... In this study,we prepare the specimens of three-dimensional random fibrous(3D RF)material along its through-the-thickness(TTT)and in-plane(IP)directions.The experimental tests of tensile and compressive properties as well as fracture toughness of 3D RF material are performed at elevated temperatures.Then,the porosity(83%,87%and 89%)and temperature dependence of the tensile and compressive strength,elastic modulus,fracture toughness and fracture surface energy of the 3D RF materials for both the TTT and IP directions are analyzed.From the results of the tensile strength and elastic modulus versus material porosities at various temperatures,we find that tensile strength and elastic modulus for the TTT direction are more sensitive to the porosity,but not for the IP direction.Fracture toughness increases firstly and then decreases at a certain critical temperature.Such critical temperature is found to be the lowest for the porosity of 83%.On the other hand,at below 1073 K,the temperature-dependent fracture surface energies with three porosities for the TTT direction show similar variation trends. 展开更多
关键词 Elevated temperature Tensile strength Compressive strength.Fracture toughness(FT) Fracture surface energy(FSE)
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